//========================================================================
// GLFW 3.3 Win32 - www.glfw.org
//------------------------------------------------------------------------
// Copyright (c) 2002-2006 Marcus Geelnard
// Copyright (c) 2006-2017 Camilla Löwy <elmindreda@glfw.org>
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
//    claim that you wrote the original software. If you use this software
//    in a product, an acknowledgment in the product documentation would
//    be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such, and must not
//    be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source
//    distribution.
//
//========================================================================
// Please use C89 style variable declarations in this file because VS 2010
//========================================================================

#include "internal.h"

//////////////////////////////////////////////////////////////////////////
//////                       GLFW internal API                      //////
//////////////////////////////////////////////////////////////////////////

// Initialise timer
//
void _glfwInitTimerWin32(void) {
  uint64_t frequency;

  if (QueryPerformanceFrequency((LARGE_INTEGER*)&frequency)) {
    _glfw.timer.win32.hasPC = GLFW_TRUE;
    _glfw.timer.win32.frequency = frequency;
  } else {
    _glfw.timer.win32.hasPC = GLFW_FALSE;
    _glfw.timer.win32.frequency = 1000;
  }
}

//////////////////////////////////////////////////////////////////////////
//////                       GLFW platform API                      //////
//////////////////////////////////////////////////////////////////////////

uint64_t _glfwPlatformGetTimerValue(void) {
  if (_glfw.timer.win32.hasPC) {
    uint64_t value;
    QueryPerformanceCounter((LARGE_INTEGER*)&value);
    return value;
  } else
    return (uint64_t)timeGetTime();
}

uint64_t _glfwPlatformGetTimerFrequency(void) {
  return _glfw.timer.win32.frequency;
}
